VEGA VEGAFLEX 55K - Manual (Page 26)

26 VEGAFLEX 55K
You have connected the PC with the adjust-
ment software VVO to your measuring sys-
tem.
• Now switch on the power supply of the
connected sensor.
In the first 10 … 15 seconds the sensor starts
to draw a current of approx. 22 mA (selftest)
and then takes on a level-proportional or dis-
tance-proportional current of 4 … 20 mA.
• Start the adjustment software VVO on your
PC.
• In the entrance window, you choose with
the arrow keys or the mouse the item "Plan-
ning" and click to "OK".
You should choose
"Planning" only if you
are authorised to modify instrument param-
eters. Otherwise choose
"Operator" or
"Maintenance".
In the window
"User identification", you are
asked for the name and the password.
• For setup ( Planning), you enter under
name: "VEGA" and under password also:
"VEGA". It does not matter if the words are
entered in small or capital letters.
VVO determines then automatically the type
of the connected sensor and indicates a
moment later with which sensor a connection
exists.
If you get no communication with the sensor,
check the following:
- The supply voltage must be at least 15 V at
4 mA or 14 V at 22 mA.
- In case VEGACONNECT 2 / 3 is directly
connected to the sensor cable, the load
resistance must be 250 … 350 Ohms.
- You have to use a VEGACONNECT 2 or 3.
Older versions of VEGACONNECT are not
compatible.
You will find further information on adjustment
with the PC and the adjustment software VVO
in the operating instructions manual of the
adjustment software VEGA Visual Operating
(VVO).
4.3 Adjustment with the PC
Connection
The PC with the adjustment program VVO
(VEGA Visual Operating from version 2.80)
can be connected to the
- sensor or
- signal cable.
PC on the sensor
To connect the PC to the sensor, the interface
converter VEGACONNECT 2 or 3 is required.
Plug it into the provided CONNECT sockets
in the sensor.
PC on the signal cable
Connect the two-wire cable of
VEGACONNECT 2 / 3 to the supply cable
(two-wire sensor) of the sensor. If the resist-
ance of the systems (PLC, current source
etc.) connected to the supply cable is less
than 250
Ω
, a resistor of 250 … 350
Ω
must
be connected to the supply cable during
adjustment. The digital signals modulated
onto the signal cable would otherwise be
considerably damped (short-circuited)
through insufficient resistance, and communi-
cation with the PC would not be ensured.
250 ... 350 Ω
+
-
Setup
VEGACONNECT 2/3